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Javascript get mouse coordinates9/5/2023 Y = parseInt(y) + parseInt(elm. X = parseInt(x) + parseInt(elm.offsetLeft) offsetTop to y and set elm to its offsetParent if not then add current elm’s offsetLeft to x Y = elm.offsetTop // set y to elm’s offsetTopĮlm = elm.offsetParent // set elm to its offsetParent pageX and event.pageY in combination with the jQuery offset() method to get the position of mouse pointer relative to an element. MouseEvent.layerX Read only Returns the horizontal coordinate of the event relative to the current layer. MouseEvent.ctrlKey Read only Returns true if the control key was down when the mouse event was fired. John Au-Yeung 66K Followers Web developer. Refresh the page, check Medium ’s site status, or find something interesting to read. X = elm.offsetLeft // set x to elm’s offsetLeft The Y coordinate of the mouse pointer in local (DOM content) coordinates. How to Track the User’s Mouse’s Position with JavaScript by John Au-Yeung JavaScript in Plain English 500 Apologies, but something went wrong on our end. Get X and Y position of the elm (from: ) Var x, y = 0 // variables that will contain the coordinates Here add the ID of the HTML elements for which to show the mouse coords Click to add the coordinates in this text field. Script code - Click on the code to select it. When the user clicks on that element, it is executed a function that adds the coordinates into a text field. ![]() When mouse moves over the specified element, the X (horizontal) and Y (vertical) coordinates are displayed into a Div. What we want to do is figure out the exact click position when youĬlick anywhere inside the yellow container:įirst, we have the event listener setup to listen for aĬlick event: yellowContainer.The JavaScript script presented in this page can be used to Get Mouse coordinates inside a HTML element, usually a Div or an Image. ![]() ![]() In that thread, let's start by looking at a seeminglyįine approach that seems like it should give us the exact position of What we want to do is figure out the exact click position when you click anywhere inside the yellow container: First, we have the event listener setup to listen for a click event: yellowContainer. Then from the mousemove event object, we can use the clientX and clientY properties to get the x and y coordinate of the mouse cursor on the page. It can be implemented using the clientX and clientY methods of the event: event.clientX: It gives the horizontal coordinate of the event. Get the Mouse’s Position with the clientX and clientY Properties We can listen to the mousemove event which is triggered whenever we move the mouse. The dimension of the canvas is found using the getBoundingClientRect () function. A function is created which takes in the canvas element and event as parameters. Pointing thing! A Worthy (But Incomplete) AttemptĪ great way to learn is by understanding why something doesn't work So, the task is to find the coordinates of the mouse over the screen. Currently, it does these things: Creates (undefined) variables for the X and Y coordinates of the mouse. The coordinates of the mouse whenever a click takes place can be found by detecting the click event with an event listener and finding the event’s x and y position. Here works on a touch device where a stylus or your finger is the "mouse" and "click" will appear often, just know that everything I show In this tutorial, I will explain the magic behind figuring out theĮxact pixel coordinates of where a click occurred. Something you may find yourself needing to do is figuringĪn example where knowing the exact click position isĬlick anywhere inside the gray box to see the red circle move to the Mouse (or another pointing device like a stylus or finger). ![]() For all sorts of interactive doo-dads you will beĬreating, chances are you will be making heavy use of the
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